(MS Excel) Do you know a way of putting equation into cells? - excel

I would like to achieve following as my spreadsheet is rather large and I always spend a lot of time figuring out some of my calculations that I made few weeks ago.
Just by looking at the formula, I cannot really say, which equation / correlation was used. Notes such as "this guys" (1967) for "some" ratio < "something" and ___ < "something" are also not as clear as putting equation next to it. If I cannot put it in a cell, it usually gets disarranged. Is there any trick.
Example of what I want to achieve (This was made in Numbers, which are otherwise inferior to MS Excel):

There are various 3rd party 'add-in' providers that you can utilise to assist with this (I used MathType for my MSc dissertation which included over 100 equations in tables etc.).
You can also use this to easily prepare a neatly aligned set of equations in MS Word (where I imagine your table is ultimately going, if not in Latex - although I could be wrong!).
To snap any object to a cell boundary, hold alt whist dragging it with your mouse in MS Excel.
To resize the object ensure you select "lock aspect ratio" to avoid undue distortion (equation objects need extra TLC as an incorrect aspect ratio for your equation can detract from credibility of your overall work!
jOptoins**
Sample

You of course can add a comment or note to the cell by Right-Clicking the cell.
If you want to include a comment in the formula itself...
HTH

Related

Summing up cohort behavior cumulatively by date ranges without offsets in excel

I think this problem, when solved by creating additional charts with offsets, is easy. I want to cut out the middle man and not use offsets (unless they are useful to the answer). I have data for daily cohorts and I know specific information about their behavior 1 day later, 2 days, 3 days ect.
Now it is rather easy to make a waterfall chart of day by day activity like so...
What I want to do is skip this step (directly above, the waterfall chart) in hopes of shrinking my current workbook by a substantial amount. You can imagine having simply 1 year of data across multiple channels measuring even 1 aspect of behaviors can account for a lot of data and pivot charts. Also, btw, I have the top chart as a pivot thus allowing this to be hands off when calculating what I am looking for.
What I seek - I look to further construct groups of days as other cohorts to examine (for example, say, 1/1 - 1/5) and see what their activity has been in a cumulative fashion since then. To be more specific, I want a table that will show cohort 1/1-1/5's activity in the date range 1/1-1/5 (11) and then their activity from 1/1-1/9 (24, an additional 13 "behavior points" summed).
So far, as I said, my current solution involves the "blue arrow" schematic where an additional table is constructed and I can sum on, essentially, rectangles build by using OFFSET on sell ranges with the MATCH function. I am stumped with how to go about this without the additional charts.
Thanks!
VBA would better for this, but use this formula in C30:
=IFERROR(SUM(SUMIF(OFFSET(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(C$28)),SEQUENCE($B30-$A30+1),IF(COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(C$28)))-SEQUENCE($B30-$A30+1,,0)>COLUMN($B$1),0-SEQUENCE($B30-$A30+1,,0),COLUMN($B$1)-COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(C$28)))+1),1,IF(COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(C$28)))-SEQUENCE($B30-$A30+1,,0)<=COLUMN($B$1),(C$29-C$28+1)-SEQUENCE($B30-$A30+1,,-(COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(C$28)))-COLUMN($B$1)-1)),C$29-C$28+1)),"<>")),0)
and this in D30:
=C30+SUM(SUMIF(OFFSET(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(D$28)),SEQUENCE($B30-$A30+1),IF(COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(D$28)))-SEQUENCE($B30-$A30+1,,0)>COLUMN($B$1),0-SEQUENCE($B30-$A30+1,,0),COLUMN($B$1)-COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(D$28)))+1),1,IF(COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(D$28)))-SEQUENCE($B30-$A30+1,,0)<=COLUMN($B$1),(D$29-D$28+1)-SEQUENCE($B30-$A30+1,,-(COLUMN(OFFSET($B$1,$A30-MIN($B$2:$B$10),MIN($B$2:$B$10)-$A30+DAY(D$28)))-COLUMN($B$1)-1)),D$29-D$28+1)),"<>"))
And copy both down.
If one does not have the dynamic Array formula SEQUENCE() then replace all the SEQUENCE($B30-$A30+1) and SEQUENCE($B30-$A30+1,,0) with ROW($ZZ$1:INDEX($ZZ:$ZZ,$B30-$A30+1)) and (ROW($ZZ$1:INDEX($ZZ:$ZZ,$B30-$A30+1))-1) Respectively, and use Ctrl-Shift-Enter instead of Enter when exiting edit mode.
I was able to collaborate on a solution. I am told that it will be highly inefficient at scale but it gets the job done. It ss less automation-friendly but can be formulated to capture data not currently present on a, say, a pivot table that you call to update later by extending the area that the formula works on.
Formula in in I31:
=SUM(IF(($C$1:$O$1+OFFSET($B$2,$G31-$B$2,0):OFFSET($B$2,$H31-$B$2,0))>=I$29,OFFSET($C$2,$G31-$B$2,0):OFFSET($O$2,$H31-$B$2,0)))-SUM(IF(($C$1:$O$1+OFFSET($B$2,$G31-$B$2,0):OFFSET($B$2,$H31-$B$2,0))>I$30,OFFSET($C$2,$G31-$B$2,0):OFFSET($O$2,$H31-$B$2,0)))

Dividing people in to groups based on strength and rank

Edited:
after using Solver which Saulo Suggested I have managed to get excel sorting them in to groups up to 8 groups of 3. though am approaching troubles when going further ideally at this time I need to be able to do 18 groups of 3. but even with the same settings obviously adjusting for the increase in groups excel seems to belly up on the process and fails, any suggestions to adapt to this?
I am trying to figure out an easy and as accurate as possible without going too crazy with the math and formulas as I am basic with my excel coding (coding in general) to calculate the ideal groups of 3 based on rank and strength for a video game.
I want to pair the strongest with the weakest and then fill the gaps evenly for the 3rd person. so, that each team’s overall strength is the same roughly.
factors I have is a designated leader(rank) and an overall power level(strength).
doing this manually isn't too hard but trying to automate it is. any thoughts or suggestions would be amazing!?
something like this but automated which is where I am getting stuck, as I want to be able to add more players and adjust strengths as they come along.
Hope this makes sense.
Jordan, you have a classic situation to use "Solver". First of all, you have to make "Solver available in your Excel. Select Home -> Option -> Supplements -> Solver. Then, the solver button´s will be at the "Data" menu.
Solver is about solving a problem with especific conditions, changing specific cell, with specifc purpose. In your case, your purpose is creat teams with the minimal strength diference. A condition of your problem is that teams should have the same number of players. See how I organized the sheet.
Sheet
When do you open solver, the first field is "Seat Goal". Our goal (or purpose) is reduce the diference between teams as minimal as possible. So we selected the cell with the diference between teams. Then we have to tell to excel that our purpose is that cell have the minimal value (chossing "min").
Then we have to tell excel wich cells they can change values to achieve our goal. In this case, Excel can change the teams of player, so we select the cells with the teams.
Last we have to tell excel whats condition (or restrictions) of this problem. The first restction is that the total of player of team 1 is tree. The total of players of team 2 is, both, 3. Then we have to tell to excel what are the limits (superior and inferior) of values of variable cells. In this case, we chose superior or equal to 1, AND (other restrction) inferior or equal to 2.
Ok. Now we have a problem with specif goal, changing the value of specifc cells, with specif restriction. Now solver can work. Then choose the method of soluction "Evolutionary", Honestly, I do know the diference between the methods, but my experience is that evolutionary method works better than the others.
I recomend reading the excel tutorial on solver. At first, all of us think that is too dificult, but believe that is simpler than it seems.

Displaying multiple items in Excel graph and few calculation issues

I've done some Googling for each of my issues but haven't found exactly the results as I wanted. Things I need to be done doesn’t probably include any macros/VBA skills, just basic knowledge of Excel.
Now to my spreadsheet. I'm a Dota 2 player and I like statistics. I like it that much that I'd like to keep track of my achievements and results. Only problem is that the game tracker sucks and to get great information in web you have to pay for it, so I decided it's time for me to create my own spreadsheet to track my skills.
I don't know which place is the best to share my spreadsheet but I uploaded it to Estonian uploading host, link is here. I will also provide with pictures so you don't have to download anything.
This is what it looks like in general:
Problem number 1: The left table, or column has 1000 rows. In web design it's possible to make elements fixed depending on the scroll, I'd like to use similar feature here. If the table gets scrolled down, the right table (area with games, bonus and graph) will get scrolled down with it.
Problem number 2: Average MMR. I'd like to show average MMR after each entry depending on the first entries. Right now there's avg MMR for J4:J8. The calculation for J8 looks like this: =AVERAGE(C4:C8). For J7 it looks like this: =AVERAGE(C4:C7). I'd like to do this for all my 1000 rows, but I don't want to type it out. If I try to drag down from the corner, it will continue with C5:C8, C6:C9 etc (so it changes the starting point)
Problem number 3: Under longestGame there's currently Date and Hero. This should show the Date and Hero of which the longest game occurred. I tried to do this with LOOKUP function but it required table to be in ascending order, which I don't want. For current, 44,22, there should be Storm Spirit and 14.06.2015.
Problem number 4: Graph. I'd like to display three series on graph - MMR, average MMR and game length (time). The problem is, that MMR and average MMR will be in the numbers on 3000-7000 but the game length will only be probably in timeframe 20:00-120:00. Maybe it's possible to add two sets of values to the Y axis or maybe set Time series maximum 200:00 and minimum 0:00 and create graph according to this. I'm really stupid making graphs and I haven't figured out a clever way yet.
Problem number 5: Graph again. Right now I have to set the series for the graph. I've currently set it to C4:C54 (so 50 rows). I'd like it to move around a bit and by that I mean that if there happens to be C55-th game then the graph would start from C5:C55 and move along (so it'll count 50 last games).
I'm in a benevolent mood so rather than downvoting your question, because it is not really suitable for this forum I'm going to give you some hints and guidance. The numbers below correspond to the problems in your question.
Excel permits more than one window to be used on the same workbook -
so one window can show the data and one the summary.
Find out about absolute and relative cell addressing - its a valuable bit of knowledge for anyone serious about Excel and it will be of use in solving your problem.
Find out about the MATCH function. You can use this to find out which row of your table contains the longest game, shortest game, max MMR, min MMR by matching an element from the summary on the right (cols M onward) against the appropriate column table on the left. The find out about the INDEX function - this can be used to pull the values in the columns for Hero and Date which correspond to a specific row (such as the row containing the longest game, shortest game, etc). Search INDEX MATCH and find out why using these two functions in combination is often preferred to using the VLOOKUP function
Persevere - there are graph options available to do what you want and the only way to really learn is to go through the pain of trying them out, failing and working at it until you succeed.
Set up an area of worksheet to hold the 50*3 table of data for your graphs. Find out about the COUNT function and think how it might be of use in determining which rows of the data table map to the 50 rows of graph data. Then think about how to populate the graph data table using one of the functions mentioned above. Incidentally, C4:C54 is actually 51 rows, not 50.

A formula in my worksheet starts with =+ what does that mean?

basically i want to change the exam grades in my worksheet which is currently 25% to 50%. Apparently the formula in term 1 is correct, which means its giving 50%, but its giving 25% in term 2.although the formula in both the terms is exactly same.
Without any more detail, it's hard to know what your formulas are doing - but the =+ in a formula doesn't really mean anything, it's the same as just using an = sign. =+1+1 will show "2", =+5+5 will show 10. =+5*2 will show 10, then automatically remove the "+" sign. I suppose it could be used/thought of as an explicit "positive" number attribution?
Edit: You can Google around for a better answer, I found this one on Mr. Excel:
"The '+' character is a backwards-compatible effort by Microsoft to accommodate formula entry by people who were former Lotus users, in long ago days when Lotus was the dominant spreadsheet program and MS was building their customer base.
Given the premise of the question being 'why use it and why is it there', my understanding of the '+' character's genesis and existence in Excel formulas is rooted in compatibility with other programs. It's there because Microsoft was in a battle with Lotus and other programs some 15 years ago for spreadsheet marketshare dominance, and incorporated features like this for compatibility, just as REM and some BASIC statements are still supported in VBA.
Though the '+' character has a coercive effect in some formulas, one would typically not employ or be advised to rely on the preceding '+' as a general strategy for coercion before employing +0, *1, or --.
Most times when I see a formula with a preceding '+' character, it's composed by an ex-Lotus convert." - Tom Urtis
Also someone else points out a NumPad seldom has an "=" so Excel can use "+" instead. =2+2 is the same in Excel as +2+2 in a cell.

excel: charting with unknown number of data

Let's (for discussion purposes) say that I have x and y data in 2 columns. They're some measured data which, several times a day, a few of them are added (usually 4 times a day).
Now, I wish to plot y=f(x) (linear scale), but the problem is since data is constantly added to determine the number of points which will go in the plot. Always creating a new plot and then formatting it and all, is troublesome for ... reasons.
Is there a way to do this using excel's build in functions ? Should I use vba ? I tried googling, but I don't know what to search for. I'd appreciate any help on this, even if its just a point in the right direction.
Is there a way to tell excel, use all points in this column until you hit an empty cell ?
You can do this without any VBA. Jon Peltier has an example by Debra Dalgleish on his website:
http://peltiertech.com/Excel/Charts/DynamicColumnChart1.html
It can be pretty frustrating to Google anything related to Excel because there is so much junk out there, but I've found that if there's something "obvious" that you know shouldn't be so hard, one of the various "MVP" sites will have covered it.

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